7TOJ
Crystal structure of carbohydrate esterase CspAcXE, apoenzyme
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 298 | 20 mM acetylated xylooligosaccharides, 30% (w/v) Jeffamine ED-2001 pH 7.0 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.25 | 45.33 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 120.16 | α = 90 |
b = 77.31 | β = 96.89 |
c = 42.08 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | RAYONIX MX-300 | 2018-04-18 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.978 | APS | 21-ID-D |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||
1 | 1.3 | 36.33 | 99.7 | 0.067 | 0.025 | 0.999 | 15 | 9.4 | 93360 | 19.38 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.3 | 1.33 | 99.5 | 1.598 | 0.648 | 0.648 | 0.536 | 7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | SAD | FREE R-VALUE | 1.3 | 35.36 | 1.35 | 93351 | 4615 | 99.65 | 0.1417 | 0.1405 | 0.1636 | RANDOM | 28.58 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 13.6657 |
f_angle_d | 1.0722 |
f_chiral_restr | 0.0937 |
f_plane_restr | 0.0103 |
f_bond_d | 0.0081 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2824 |
Nucleic Acid Atoms | |
Solvent Atoms | 551 |
Heterogen Atoms | 3 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
Aimless | data scaling |
HKL-3000 | phasing |
PHENIX | model building |
Coot | model building |